User guide

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com

Subject to technical amendments

6. Sample experiment

6.1 Measuring the absolute pressure in relation

to the volume (Boyle’s law)

Apparatus required:

1 3B NETlog

interface U11300

1 Absolute pressure sensor U11320

• Set-up the experiment according to Fig. 1.

• Fit the plastic syringe with an approx. 2-cm

long hose.

• Fill the syringe with 20 ml of ordinary air.

• Push the free end of the silicone tube onto the

nozzle of the pressure sensor.

• CAUTION: as far as possible, do not alter the

volume in the syringe!

• Connect the absolute pressure sensor to the

3B NETlog

interface and wait for the interface

to recognise the sensor.

• The first reading appears on the interface dis-

play.

• In the 3B NETlab

software’s manual mode,

enter the readings for the volume by hand in

steps of 1 ml at a time.

• Plot the graph of the characteristic.

Fig. 1: Measuring the absolute pressure in relation to the volume

Fig. 2: Pressure against volume